Abstract: Composite structure comprising one or more plies of nonwoven and one or more plies of film, these being manufactured from thermoplastics, wherein all the plies of nonwoven of which the structure is composed are totally manufactured from a polymer or a copolymer or a blend of polymers derived from lactic acid and wherein all the plies of film are totally manufactured from a polymer of the BAPE (biodegradable aliphatic polyester) type. The invention also relates to a process for manufacturing said composite structure.Application: Diapers, sanitary napkins, protective garments, surgical drapes and masks in the medical field and certain products for absorption and filtration, protection of plants in agriculture and mulching.